* {
	-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
	-webkit-user-select: none;
}
body {
	margin: 0;
	padding: 0;
}

#canvas {
	position: absolute;
	top: 0;
	left: 0;
}

#functions {
	position: absolute;
	top: 0;
	left: 0;
	margin: 5px;
	opacity: 0.3;
}

.btn-switch-group {
	background: #999;
	display: inline-block;
	position: relative;
	vertical-align: middle;
	border-radius: 3px;
	box-shadow: 0 0 1px black, inset 1px 2px 3px #444;
}

#line-width-group,#global-opacity-group {
	position: relative;
	display: inline-block;	
}

#line-width {
	position: absolute;
	left: 0px;
	top: 40px;
	display: none;
}

#img-bg {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}

.config-range {
	display: inline-block;
	position: relative;
}

#file {
	display: none;
}

.config-range input {
	position: absolute;
	top: 40px;
	left: 0px;
	display: none;
}
